Rhodolite and Neptunite Physical Properties

Rhodolite

Neptunite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.843.19-3.23

1 7.18

1.5 Fracture

Conchoidal

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

1.6 Cleavage

none, may show indistinct parting

{110} good

1.7 Mohs Hardness

7-7.55-6

2 10

1.8 Chemical Composition

(Mg,Fe)₃Al₂Si₃O₁₂

KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)

Rhodolite and Neptunite Chemical Formula

While comparing Rhodolite and Neptunite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Rhodolite and Neptunite chemical formula.

Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂
Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)

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Rhodolite and Neptunite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodolite and Neptunite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodolite and Neptunite Optical Properties during the identification of gemstone. Specific gravity of Rhodolite is 3.19-3.23 whereas that of Neptunite is 3.19-3.23.